Clean Water Act discharge permit · NPDES MO0130095
CALVEY BROOK ESTATES WWTP, Robertsville, MO: NPDES MO0130095 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CALVEY BROOK ESTATES WWTP, held by Confluence Rivers Utility Operating, holds NPDES permit MO0130095, which discharges to Tributary To Little Calvey Creek. EPA’s file records it issued July 10, 2018 and expiring June 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CALVEY BROOK ESTATES WWTP |
|---|---|
| Permittee as filed | Confluence Rivers Utility Operating |
| NPDES ID | MO0130095 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 10, 2018 |
| Expiration date | June 30, 2023 |
| Address | Robertsville, MO 63072 |
| Receiving water | Tributary to Little Calvey Creek |
| Subwatershed | Calvey Creek-Meramec River (HUC 071401020901) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 6Under a numeric limit
- 7With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 16 | 6 | June 30, 2019 | 207% over the limit |
| Solids, total suspended | 2 | 11 | 3 | June 30, 2018 | 90% over the limit |
| Oxygen, dissolved [DO] | 0 | 4 | 3 | March 31, 2016 | 50% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 8 | 0 | ||
| pH | 2 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| E. coli | 2 | 4 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 1, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 2, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MO0130095.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MO0130095 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.